[gnome-backgrounds] build: add meson.build to dist tarball

[Kalev Lember <klember src gnome org>]

commit 0dda4421f3759d7e4636155739e6ccde970aa0a2
Author: Jürg Billeter <j bitron ch>
Date:   Thu Sep 14 19:24:23 2017 +0200

    build: add meson.build to dist tarball

 Makefile.am |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index cb63e0c..5a27d65 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -41,7 +41,10 @@ MAINTAINERCLEANFILES = \
 
 EXTRA_DIST = \
        its/wallpaper.its \
-       its/wallpaper.loc
+       its/wallpaper.loc \
+       meson.build \
+       backgrounds/meson.build \
+       po/meson.build
 
 
 -include $(top_srcdir)/git.mk